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Re: [Full-disclosure] sshd logins without a source



> ... I can see in each servers sshd logs an entry like the following:
> Sep 22 12:57:14 test-vm sshd[25002]: pam_unix(sshd:session): session opened 
> for user root by (uid=0)
> Sep 22 12:57:32 test-vm sshd[25002]: pam_unix(sshd:session): session closed 
> for user root
> ... seems odd that there is no IP address corresponding with the
> login, I can't seem to reproduce that on my test servers.

I do not think that sshd normally logs its source. What do you mean that
you cannot reproduce? - To produce the desired log, I added to
/etc/hosts.allow the line
sshd : all : spawn /usr/bin/logger -t"%d[%p]" "Connection source %h port %r"

Cheers, Paul

Paul Szabo   psz@xxxxxxxxxxxxxxxxx   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia

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